WO2010088235A3 - Ferromagnetic detection enhancer - Google Patents

Ferromagnetic detection enhancer Download PDF

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Publication number
WO2010088235A3
WO2010088235A3 PCT/US2010/022171 US2010022171W WO2010088235A3 WO 2010088235 A3 WO2010088235 A3 WO 2010088235A3 US 2010022171 W US2010022171 W US 2010022171W WO 2010088235 A3 WO2010088235 A3 WO 2010088235A3
Authority
WO
WIPO (PCT)
Prior art keywords
apparatus includes
magnetic field
coil
sensor data
increasing
Prior art date
Application number
PCT/US2010/022171
Other languages
French (fr)
Other versions
WO2010088235A2 (en
Inventor
Keith A. Kopp
Original Assignee
Kopp Keith A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kopp Keith A filed Critical Kopp Keith A
Priority to EP10736315.2A priority Critical patent/EP2381842A4/en
Priority to JP2011548243A priority patent/JP5602160B2/en
Publication of WO2010088235A2 publication Critical patent/WO2010088235A2/en
Publication of WO2010088235A3 publication Critical patent/WO2010088235A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices

Abstract

An apparatus for increasing the ability to detect ferromagnetic objects by increasing the magnetization of the objects. The apparatus includes at least one coil to generate a magnetic field positioned in the area of the object to be detected. The apparatus includes an electrical energy storage capacitor bank capable of quickly releasing stored energy. The apparatus includes a high speed, high current electronic switch capable of quickly transferring the stored energy from the capacitor bank to the coil thereby producing in the coil a short duration, single polarity magnetic field pulse. The apparatus includes a sample and hold circuit capable of acquiring magnetic field sensor data during periods when the pulsed magnetic field is not present. The apparatus includes a microprocessor controller to control timing and sequence of the magnetic pulse generation and the sensor data sample and hold process. The apparatus may be for portal handheld or head mounted applications.
PCT/US2010/022171 2009-01-27 2010-01-27 Ferromagnetic detection enhancer WO2010088235A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10736315.2A EP2381842A4 (en) 2009-01-27 2010-01-27 Ferromagnetic detection enhancer
JP2011548243A JP5602160B2 (en) 2009-01-27 2010-01-27 Ferromagnetic detection enhancer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/360,367 2009-01-27
US12/360,367 US8148989B2 (en) 2002-03-11 2009-01-27 Ferromagnetic detection enhancer compatible with magnetic resonance

Publications (2)

Publication Number Publication Date
WO2010088235A2 WO2010088235A2 (en) 2010-08-05
WO2010088235A3 true WO2010088235A3 (en) 2010-11-18

Family

ID=42396310

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2010/022171 WO2010088235A2 (en) 2009-01-27 2010-01-27 Ferromagnetic detection enhancer

Country Status (4)

Country Link
US (1) US8148989B2 (en)
EP (1) EP2381842A4 (en)
JP (1) JP5602160B2 (en)
WO (1) WO2010088235A2 (en)

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GB2563953A (en) 2017-06-28 2019-01-02 Cirrus Logic Int Semiconductor Ltd Detection of replay attack
GB201713697D0 (en) 2017-06-28 2017-10-11 Cirrus Logic Int Semiconductor Ltd Magnetic detection of replay attack
GB201801526D0 (en) 2017-07-07 2018-03-14 Cirrus Logic Int Semiconductor Ltd Methods, apparatus and systems for authentication
GB201801530D0 (en) 2017-07-07 2018-03-14 Cirrus Logic Int Semiconductor Ltd Methods, apparatus and systems for authentication
GB201801528D0 (en) 2017-07-07 2018-03-14 Cirrus Logic Int Semiconductor Ltd Method, apparatus and systems for biometric processes
GB201801532D0 (en) 2017-07-07 2018-03-14 Cirrus Logic Int Semiconductor Ltd Methods, apparatus and systems for audio playback
GB201801527D0 (en) 2017-07-07 2018-03-14 Cirrus Logic Int Semiconductor Ltd Method, apparatus and systems for biometric processes
GB201801663D0 (en) 2017-10-13 2018-03-21 Cirrus Logic Int Semiconductor Ltd Detection of liveness
GB201801661D0 (en) 2017-10-13 2018-03-21 Cirrus Logic International Uk Ltd Detection of liveness
GB201801664D0 (en) 2017-10-13 2018-03-21 Cirrus Logic Int Semiconductor Ltd Detection of liveness
GB201804843D0 (en) 2017-11-14 2018-05-09 Cirrus Logic Int Semiconductor Ltd Detection of replay attack
GB201801874D0 (en) 2017-10-13 2018-03-21 Cirrus Logic Int Semiconductor Ltd Improving robustness of speech processing system against ultrasound and dolphin attacks
GB201803570D0 (en) 2017-10-13 2018-04-18 Cirrus Logic Int Semiconductor Ltd Detection of replay attack
GB2567503A (en) 2017-10-13 2019-04-17 Cirrus Logic Int Semiconductor Ltd Analysing speech signals
GB201801659D0 (en) 2017-11-14 2018-03-21 Cirrus Logic Int Semiconductor Ltd Detection of loudspeaker playback
US11268506B2 (en) 2017-12-22 2022-03-08 Iradimed Corporation Fluid pumps for use in MRI environment
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US10915614B2 (en) 2018-08-31 2021-02-09 Cirrus Logic, Inc. Biometric authentication
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US20060158331A1 (en) * 2004-12-30 2006-07-20 Mednovus, Inc. Ferromagnetic detection pillar

Also Published As

Publication number Publication date
US8148989B2 (en) 2012-04-03
EP2381842A2 (en) 2011-11-02
JP5602160B2 (en) 2014-10-08
EP2381842A4 (en) 2017-11-01
US20090167307A1 (en) 2009-07-02
WO2010088235A2 (en) 2010-08-05
JP2012516449A (en) 2012-07-19

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